Wibowo, Rahmat Catur and Mulyatno, Bagus Sapto and Dewanto, Ordas and Sarkowi, Muh Structure from Motion (SfM) to Characterize Fluvial Sedimentology: Case Study Way Semaka River. IOP Conference Series: Materials Science and Engineering, 1149 (1). pp. 1-6. ISSN Online ISSN: 1757-899X Print ISSN: 1757-8981 (Submitted)
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Abstract
Abstract. Structure from motion (SfM) has seen rapid uptake recently in the fluvial sedimentology. This uptake is not least due to the widespread availability of cheap unmanned aerial vehicles/drones, which help mitigate the challenging terrain and deliver efficient and reproducible and high-accuracy images and topographical data. The current study describes the application of SfM in order to build a geomorphological model and estimates surface water velocity of Way Semaka River in BNS region, West Lampung. Way Semaka river is river type with a large meandering system and stable extension tectonic regime, relatively. River morphology approximately 96.62 m width and 4 m depth in straight (relatively) area, whereas in channel area approximately 171.22 m width and 5 m depth. The velocity range between 0.39 – 1.56 m/s based on image analysis and proven by current meter measurements onsite with an RMS error 0.25. Manual geomorphic unit level 2 analysis revealed that for the zone within the channel, 9% of the coverage consisted of basins, 35% of the coverage consisted of convexity, 9% consisted of planar features and 37% of the coverage consisted of the transition zone
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > Q Science (General) Q Science > QE Geology |
| Divisions: | Fakultas Teknik (FT) > Prodi Teknik Geofisika |
| Depositing User: | ORDAS DEWA |
| Date Deposited: | 24 May 2021 01:38 |
| Last Modified: | 24 May 2021 01:38 |
| URI: | http://repository.lppm.unila.ac.id/id/eprint/30477 |
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